subject-two/entry/src/main/ets/pages/judgeSDK/utils/fileModel.ts

import FileUtil from '../../../common/utils/File'
import zlib from '@ohos.zlib';
import promptAction from '@ohos.promptAction';
import router from '@ohos.router';

export default class FileModel{

  //后续文件路径待替换
  private fileUtil: FileUtil
  public folderPath: string

  constructor(context){
    (async ()=>{
      const fileUtil = new FileUtil(context)
      this.fileUtil = fileUtil
    })()

  }

  // 设置文件夹
  public initFolder = async () => {
    const {fileUtil} = this
    await fileUtil.initFolder(`/models/model_enc`);
    const folderPath =  await fileUtil.initFolder(`/models`);
    this.folderPath = folderPath;
  }

  // 存储zip文件并解压
  public storingFiles = async (str) => {
    const {fileUtil,folderPath} = this;
    await fileUtil.editFile(`${folderPath}/model.zip`,str,'overWrite')

    let options = {
      level: zlib.CompressLevel.COMPRESS_LEVEL_DEFAULT_COMPRESSION,
      memLevel: zlib.MemLevel.MEM_LEVEL_DEFAULT,
      strategy: zlib.CompressStrategy.COMPRESS_STRATEGY_DEFAULT_STRATEGY
    };

    zlib.unzipFile(
      `${folderPath}/model.zip`,
      `${folderPath}`,
      options).then((data) => {
      console.log("unzipFile result：" + data);
    }).catch((err)=>{
      console.log("catch((err)=>" + err);
    })

  }

  //获取文件内容
  public getModelContent = (folderPath,fileName) => {
    const {fileUtil} = this;
    try {
      const content = fileUtil.getFileContent(`${folderPath}/${fileName}`)
      return content;
    }catch (e){
      console.info('surenjun',JSON.stringify(e))
      promptAction.showToast({
        message:`请检查模型路径${folderPath}/${fileName}是否正确！`,
        duration:4000
      })
    }
  }

}